BASC Search

Wrong - Basement window not sealed.

Wrong – A poorly sealed window and window well allow bulk water to enter the crawlspace from ground that slopes toward the structure

Publication Date

Mon, 09/01/2014 - 12:00

Before sealing and insulating the crawlspace, the windows were sealed, the window wells backfilled, and sumps pumps were installed that discharged to the gutter downspouts

Publication Date

Tue, 09/14/2021 - 12:00

Use this simple calculation to size overhangs above south facing windows.

Publication Date

Tue, 07/30/2019 - 12:00

Right – This crawlspace window was completely sealed off on the inside and outside with air barrier and water-proof materials and the window well was filled in to an above-grade height to prevent bulk water from entering the crawlspace

Publication Date

Mon, 09/01/2014 - 12:00

Right – Foundation drainage mat was installed over the waterproof membrane that covers the sealed crawlspace window

Publication Date

Mon, 09/01/2014 - 12:00

This house was designed with half of the basement above grade, allowing 36-inch-tall windows for egress and daylight on both sides of the house.

The basement is half in and half out of the ground with only 4 feet below grade, which allows for full 36-inch-tall windows that are completely above grade.

Water-proof materials cover the exterior side of crawlspace windows in a crawlspace retrofit, while foil-faced rigid foams seals and insulates the inside face of the openings

Publication Date

Mon, 09/01/2014 - 12:00

Right – Foil-faced insulation was added after the crawlspace was dried and sealed by diverting water runoff, sealing off crawlspace windows and vents, and adding sump pumps and exhaust fan ventilation

Publication Date

Mon, 09/01/2014 - 12:00

Foundation wall interior polyisocyanurate, foil-faced, exposed

DWG

PDF

Termite shield with exterior rigid foam above and below

DWG

PDF

Foundation wall interior rigid insulation with furring strips

DWG

PDF

Spray foam on a stone or rubble foundation

DWG

PDF

Spray foam on concrete foundation wall with framed interior wall

DWG

PDF

Foundation wall interior rigid insulation with framed wall

DWG

PDF

Foundation Wall Exterior board insulation without above-grade wall insulation

DWG

PDF

New Whole-House Solutions Case Study: Insight Homes: Deep Creek, Seaford, Delaware

Author(s)

Pacific Northwest National Laboratory

Organization(s)

PNNL

Publication Date

April, 2012

Case study describing a home builder that has refined its home designs to achieve HERS scores of 49 to 56 on 40 to 70 homes per year.

Upgrading Below Grade Spaces

Author(s)

University of Minnesota

Organization(s)

NorthernSTAR,

NSTAR

Presentation describing basement insulation and potential problems.

Water Management of Existing Crawlspace Floor

Guide providing information about treating bulk water drainage issues and moisture control measures in existing basements and crawl spaces.

Dry Floodproofing

Publication Date

November, 2016

Video from LSU AgCenter describing dry floodproofing and how to dry floodproof your home.

Small Commercial Building Fact Sheet - Building Envelope

Author(s)

Southface Energy Institute

Organization(s)

SEI

Publication Date

November, 2016

Fact sheet describing building envelope performance measures applicable to residential and small commercial construction.

DOE ZERH HIA 2013 Case Study: Preferred Builders, Old Greenwich, Connecticut

Author(s)

Pacific Northwest National Laboratory,

U.S. Department of Energy

Organization(s)

PNNL,

DOE

Publication Date

April, 2013

Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winner in Old Greenwich CT, that scored HERS 42 without PV and HERS 20 with PV.

Wrong - Basement window not sealed.

Wrong – A poorly sealed window and window well allow bulk water to enter the crawlspace from ground that slopes toward the structure

Before sealing and insulating the crawlspace, the windows were sealed, the window wells backfilled, and sumps pumps were installed that discharged to the gutter downspouts

Use this simple calculation to size overhangs above south facing windows.

Right – This crawlspace window was completely sealed off on the inside and outside with air barrier and water-proof materials and the window well was filled in to an above-grade height to prevent bulk water from entering the crawlspace

Right – Foundation drainage mat was installed over the waterproof membrane that covers the sealed crawlspace window

This house was designed with half of the basement above grade, allowing 36-inch-tall windows for egress and daylight on both sides of the house.

The basement is half in and half out of the ground with only 4 feet below grade, which allows for full 36-inch-tall windows that are completely above grade.

Water-proof materials cover the exterior side of crawlspace windows in a crawlspace retrofit, while foil-faced rigid foams seals and insulates the inside face of the openings

Right – Foil-faced insulation was added after the crawlspace was dried and sealed by diverting water runoff, sealing off crawlspace windows and vents, and adding sump pumps and exhaust fan ventilation

Foundation wall interior polyisocyanurate, foil-faced, exposed

Termite shield with exterior rigid foam above and below

Foundation wall interior rigid insulation with furring strips

Spray foam on a stone or rubble foundation

Spray foam on concrete foundation wall with framed interior wall

Foundation wall interior rigid insulation with framed wall

Foundation Wall Exterior board insulation without above-grade wall insulation

New Whole-House Solutions Case Study: Insight Homes: Deep Creek, Seaford, Delaware

Upgrading Below Grade Spaces

Water Management of Existing Crawlspace Floor

Dry Floodproofing

Small Commercial Building Fact Sheet - Building Envelope

DOE ZERH HIA 2013 Case Study: Preferred Builders, Old Greenwich, Connecticut

Home Performance Assessment

Flooding Overview

Design and Retrofit for Flood Protection

Air Sealed, Insulated Basements

Termite-Resistant Foundations and Walls

Rigid Foam Board Insulation for Existing Band Joists

Safe Rooms and Storm Shelters

Rigid Foam Board Interior Insulation for Existing Foundation Walls